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223 results for “Low Temperature”
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Research ArticleOpen accessIn the abstractImprovement on the Design of a Cabinet Grain DryerAdzimah K. Stephen, Seckley EmmanuelProblem statement: Grains are routinely seen dumped in villages and major cities during the peak of harvest. Therefore it is necessary that these grains are properly dried and stored to ensure availability and wholesomeness throughout the year. Advancements have taken place in the practice of drying since the first world war. Manufacturing methods have greatly improved production rate and the … …American Journal of Engineering and Applied Sciences, Vol. 2, Issue 1 · 31 Mar 2009 · 8,726 accessesView PDFCite
Research ArticleOpen accessIn the abstractEnvironmental Impact Assessment for Potential Continuous Processes for the Production of Carbon NanotubesAditi Singh, Helen H. Lou, Ralph W. Pike et al.As an emerging discipline, nanotechnology has the potential to improve environmental sustainability through its application in pollution prevention, treatment, remediation, etc. One challenging issue in the growth of nanotechnology is how to produce purified carbon nanotubes (CNT) in commercial quantities at affordable price and with low environmental impacts. A detailed assessment of such a manufacturing process from both economic and … …American Journal of Environmental Sciences, Vol. 4, Issue 5 · 31 Oct 2008 · 7,601 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Thermostable α-Amylase Producing Natural Variant of Bacillus spp. Isolated From Soil in IranIraj Rasooli, Shakiba D. A. Astaneh, Hojjat Borna, Kamal A. BarchiniThermophilic processes appear more stable, rapid and less expensive and facilitate reactant activity and product recovery. Amylases have a quarter of the world enzyme market and thermostable a-amylases possess extensive commercial applications. Since little work has been done on strain isolation, growth and enzyme yield optimization, the level of thermophilic enzyme production remains relatively low. Therefore, large scale exploitation of … …American Journal of Agricultural and Biological Sciences, Vol. 3, Issue 3 · 30 Sep 2008 · 8,907 accessesView PDFCite
Research ArticleOpen accessIn the abstractDesign of Economical Equipment for Water and Fuel Level Detection in JordanAli M. OthmanBoth a cold and hot water supplies in Jordan are provided by indirect systems and so is the fuel supply for central heating, by using storage tanks placed over the buildings roofs. This requires climbing to the roofs for measuring the level of fluid in these tanks. This method is primitive, impractical and tedious. A simple reliable easing system is … …American Journal of Applied Sciences, Vol. 5, Issue 5 · 31 May 2008 · 6,585 accessesView PDFCite
Research ArticleOpen accessIn the abstractInvestigation of The Bubble Foam Separation Technique To Extract Protein From WheyMohammed MatouqSeparation of proteins from whey; namely α- Lactoglobulin and β- Lactalbumin was obtained using the bubble foam column technique. Two types of whey were conducted in this study; yogurt whey and cheese whey. The effect of gas flow-rate and the height of the whey (liquid holdup) inside the column were studied at room temperature and at constant pH of whey. … …American Journal of Applied Sciences, Vol. 5, Issue 5 · 31 May 2008 · 7,354 accessesView PDFCite
Research ArticleOpen accessIn the abstractStudy of Benthic Fauna in the Discharge Lagoon of a Shrimp Farm With Special Emphasis on the PolychaetesLuis Rafael Martínez Córdova, Luis Fernando Enríquez OcañaA study of benthic fauna, with special emphasis on polychaetes, was made in the discharge lagoon of an experimental shrimp farm and a pond of the farm. The discharge lagoon was divided into three sections and stocked with shrimp at low density (6 Pl/m2). Neither formulated feed nor fertilization was used in these sections. The control pond was stocked with … …OnLine Journal of Biological Sciences, Vol. 7, Issue 1 · 31 Dec 2007 · 6,684 accessesView PDFCite
Research ArticleOpen accessIn the abstractStudy on Mechanism of Ascites Syndrome of BroilersJ.L. Guo, Q.H. Zheng, Q.Q. YIN et al.Two hundred and forty male Cobb broilers were used to study the reasons of causing ascites. The results showed that cold ambient temperature could induce ascites (33.89% vs. 2.50%) and significantly increase triiodothyronine (T3), but reduce thyroxine (T4) concentrations in plasma (p<0.05). The ascitic broilers had high concentrations of aldosterone and K+, but low concentrations of T3 and T4 in … …American Journal of Animal and Veterinary Sciences, Vol. 2, Issue 3 · 30 Sep 2007 · 7,850 accessesView PDFCite
Research ArticleOpen accessIn the abstractDesign and Development of a Photovoltaic Power System for Tropical Greenhouse CoolingFaisal Mohammed Seif Al-Shamiry, Desa Ahmad, Abdul Rashid Mohamed Sharif et al.Renewable energy sources like photovoltaic (PV) panels are used today in many applications. Natural ventilation in tropical greenhouse is common method for ventilation, which gives higher inside temperatures compared to the outside temperatures. In addition, this type of ventilation is not enough to reduce high temperature inside the structure in low land areas. Thus the requirement of cooling is increased. … …American Journal of Applied Sciences, Vol. 4, Issue 6 · 30 Jun 2007 · 8,216 accessesView PDFCite
Research ArticleOpen accessIn the abstractKinetics of Chromium Sorption on Biomass Fungi from Aqueous SolutionLouhab Krim, Sahmoune Nacer, Goma BilangoThe kinetics of chromium ions sorption from aqueous solution on fungi biomass have been investigated in a batch system. The experimental data were analysed based on an intraparticle diffusion equation and a pseudo-second-order mechanism, in order to predict the constant rate of sorption and the equilibrium capacity with the effect of initial chromium ions concentration, temperature and initial solution pH. … …American Journal of Environmental Sciences, Vol. 2, Issue 1 · 31 Mar 2006 · 7,424 accessesView PDFCite
Research ArticleOpen accessIn the abstractStudy of the Flow Structure of A Thermal Plume Evolving in an Unlimited and in A Semi-Enclosed EnvironmentJamil Zinoubi, A. Ould Mohamed Mahmoud, Taoufik Naffouti et al.The basic objective of this study was to better knowledge the fine flow structure of thermal plume created by a heated disk, evolving in an unlimited and in a semi-enclosed environment. The flow visualization and the study of the temperature fluctuations spectrum show clearly a considerable change of the turbulent structure of the internal flow in comparison with the free … …American Journal of Applied Sciences, Vol. 3, Issue 1 · 31 Jan 2006 · 7,034 accessesView PDFCite